Really fine trail run.
Went over to Eaglebrook School in Deerfield, figured I would do a modest track workout, but do the warm-up on the trails nearby. Got about 20 yards into the woods on a jeep path and there was a bike trail branching off. Couldn't resist it….
So spent just about an hour, 80-90% on lovely singletrack, and all that time not at all knowing where I was, just keeping track of intersections so I could find my way back if it came to that. I really was "lost". No sun at all, so no help there on direction, and I got off right near the beginning, had in mind that I was heading roughly east from my car, not north as it turned out was what I was doing. Didn't have a map, of course, nor had I looked at the topo map in advance, because I wasn't planning on such a run. But in a way it made the whole thing more fun.
Got home, downloaded the GPS, ah, that's where I went. Turns out I had been on a part of the trail once before, just had no idea.
In the old days I would have carried the USGS, mapped the trail in my head as I ran along, so I would have had a sense of where I was and also, after the fact, knew pretty much where I'd been. Now with the GPS, the latter is taken care of (where I've been), but not the former (where I am), at least with my stone age GPS. Though I think there is a function that will point you back to where you started.
Might want to learn about that for any future similar runs. :-)
Route (for those who don't pay for the blue globe).